Difference between revisions of "Boric oxide"

Latest revision as of 08:28, 10 May 2022

Description

A colorless crystalline compound used in metallurgy and in the manufacture of heat-resistant (borosilicate) glassware. Boric oxide is obtained from Boric acid, Borax, Sodium borate, or Colemanite. It is used in combination with silica as a flux for glazes.

Synonyms and Related Terms

boron oxide; boric anhydride; boron trioxide; boron sesquioxide

Chemical structure

Risks

Noncombustible.

Fisher Scientific: MSDS

Physical and Chemical Properties

Soluble in ethanol, hot water.

Composition	B2O3
CAS	1303-86-2
Melting Point	450 C
Density	2.46 g/ml
Molecular Weight	mol. wt. = 69.6
Boiling Point	1500 C

Resources and Citations

Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993

Henry Hodges, Artifacts: An Introduction to Early Materials and Technology, Ronald P. Frye, Kingston, Canada, 1988

Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997

@@ Line 1: / Line 1: @@
 == Description ==
-A colorless crystalline compound used in metallurgy and in the manufacture of heat-resistant ([http://cameo.mfa.org/materials/fullrecord.asp?name=borosilicate glass borosilicate]) glassware. Boric oxide is obtained from [http://cameo.mfa.org/materials/fullrecord.asp?name=boric acid boric acid], [http://cameo.mfa.org/materials/fullrecord.asp?name=borax borax], [http://cameo.mfa.org/materials/fullrecord.asp?name=sodium borate sodium borate], or [http://cameo.mfa.org/materials/fullrecord.asp?name=colemanite colemanite]. It is used in combination with silica as a flux for glazes.
+A colorless crystalline compound used in metallurgy and in the manufacture of heat-resistant ([[borosilicate%20glass|borosilicate]]) glassware. Boric oxide is obtained from [[boric acid]], [[borax]], [[sodium borate]], or [[colemanite]]. It is used in combination with silica as a flux for glazes.
 == Synonyms and Related Terms ==
@@ Line 8: / Line 8: @@
 [[[SliderGallery rightalign|boric oxide.jpg~Chemical structure]]]
+== Risks ==
-== Other Properties ==
+Noncombustible.
+Fisher Scientific: [https://fscimage.fishersci.com/msds/03290.htm MSDS]
+== Physical and Chemical Properties ==
 Soluble in ethanol, hot water.
@@ Line 22: / Line 27: @@
 |-
 ! scope="row"| Melting Point
-| 450
+| 450 C
 |-
 ! scope="row"| Density
-| 2.46
+| 2.46 g/ml
 |-
 ! scope="row"| Molecular Weight
@@ Line 31: / Line 36: @@
 |-
 ! scope="row"| Boiling Point
-| 1500
+| 1500 C
 |}
-== Hazards and Safety ==
+== Resources and Citations ==
-Noncombustible.
-LINK: [http://www.cdc.gov/niosh/ipcsneng/neng0836.html International Chemical Safety Card]
-== Authority ==
-* Richard S. Lewis, Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993
+* Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993
-* Henry Hodges, Henry Hodges, ''Artifacts: An Introduction to Early Materials and Technology'', Ronald P. Frye, Kingston, Canada, 1988
+* Henry Hodges, ''Artifacts: An Introduction to Early Materials and Technology'', Ronald P. Frye, Kingston, Canada, 1988
-* Random House, Random House, ''Webster's Encyclopedic Unabridged Dictionary of the English Language'', Grammercy Book, New York, 1997
+* Random House, ''Webster's Encyclopedic Unabridged Dictionary of the English Language'', Grammercy Book, New York, 1997
 [[Category:Materials database]]